open discovery space metadata for the ods projectlre.eun.org/edrene/seminars/011/1509.pdf · more...

“Metadata for the ODS project”

David Martín Moncunill/ Andreas Drakos

(d.martin@uah.es, drakos@agroknow.gr)

University of Alcalá, Agro-Know

Open Discovery Space

Index

1. Quick review of IEEE LOM Application Profiles

2. Presentation of the ODS AP

3. Detailed description of ODS LOM AP

4. Annotation tools

5. Next Module Preview: Mixing and Matching Metadata Schemas

2

Application Profiles quick review

Application profiles

4

• A set of metadata elements, policies, and guidelines defined for a particular application.

• Defines an application-appropriate set of properties in a public and communicable manner.

• Permits the building of loosely-coupled systems that still offers powerful capabilities.

IEEE LOM

5

• Institute of Electrical and Electronics Engineers Standards Association Standard for Learning Object Metadata (IEEE 1484.12.1 – 2002).

• Internationally-recognised open standard for the description of “learning objects”.

• Relevant attributes of learning objects to be described include: type of object; author; owner; terms of distribution; format; and pedagogical attributes, such as teaching or interaction style.

IEEE LOM based APs

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• Regional

– UK LOM Core (UK)

– ANZ-LOM (Australia and New Zealand)

– NORLOM (Norway)

• Domain

– Organic.Edunet (Organic agriculture)

– ODS: Open Discovery Space Application Profile

Presentation of the ODS AP

More than an AP

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• Based on the IEEE LOM Standard

• Includes curriculum-based vocabularies that will be used for the:– Harmonization

– Alignment

– Aggregation of the metadata records

• Existing educational content repositories, collections or federations into the ODS open learning content infrastructure.

More than an AP

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• The ODS Curriculum-based Vocabularies:Science, Mathematics, ICT,

Social Studies, Arts, Language Learning,

Additional subjects as proposed by ODS Partners.

• A set of options for categories of social tags and evaluative metadata, which can be utilized by the ODS Portal towards enabling its end-users to contribute their tags, comments or reviews about the educational content provided by the ODS Portal.

Objectives

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• Finding the offered learning resources useful for the classroom .

• Appreciating the cross-linguistic and cross-border use of content.

• Perceive pedagogical benefits of the resources provided.

• Facilitate automatic translation services.

• Socially-Powered.

Objectives

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• Several different metadata applications profiles used by the various repositories integrated in ODS.

• A unique ODS application profile.

Detailed description of ODS LOM AP

Data Types

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• CharacterString: text can be entered in the element directly (e.g. “ISBN”, “ARIADNE”, “LOMv1.0”, etc.).

• LangString: the text must identify its language and there can be one or more character strings in the element (e.g. “en”, “organic agriculture”).

• DateTime: the element contains date and time information and there can also be textual information about this point in time (e.g. “2008-07-21”).

• Duration: the element contains information about an interval in time and there can also be textual information about the duration (e.g. “PT2H45M”, “PT50S”).

• Vocabulary: the element contains source and value where source is a reference to publicly sourced and maintained value.

ODS AP Overview

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.

Category Mandatory Recommended Optional

1 General 1 5 2

2 Life Cycle - 1 2

3 Meta-Metadata - 2 2

4 Technical 1 - 6

5 Educational - 5 6

6 Rights - 3 -

7 Relation - - 2

8 Annotation - - 3

9 Classification 2 - 2

Mandatory Elements

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1.2 General.Title

Datatype LangString [SPM: 1000 char]Size 1

Example

“en”, “A neutron star”

“gr”, “Ένας αστέρας νετρονίων”

.

Gives the learning object a human readable name. It is a LangString data type, which provides the possibility to

define the used language.

Mandatory Elements

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4.3 Technical. Location

DatatypeCharacterString [SPM: 1000

char]Size SPM: 10 items

Example “http://host/id”

.

A string that is used to access this learning object. It may be a location (URL), or a method that resolves to a location (URI). The first element of this list shall be the preferable

location.

Mandatory Elements

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9.1 Classification.Purpose

Datatype VocabularySize 1

Example“discipline”

“educational objective”

.

It is a Vocabulary data type which describes the purpose of classifying a learning object under a given classification

system.

Mandatory Elements

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.

Stores a taxonomic path in a specific classification system. Each succeeding level is a refinement in the definition of the

preceding level.

9.2 Classification.Taxon Path

9.2.1 Source 9.2.2 Taxon9.2.2.1 Id 9.2.2.2 Entry

Datatype

LangString

[SPM: 1000 char]

-

CharacterString

[SPM:100 char]

LangString

[SPM: 500 char]

Size 1 - 1 1

Example “Science” - “320” “Astronomy”

Recommended Elements

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.

Stores a globally label that identifies a learning object as unique. The ODS AP permits up to ten (10) identifiers for

each metadata record of a specific learning object.

1.1 General. Identifier

1.1.1 Catalog 1.1.2 Entry

Datatype

CharacterString

[SPM: 1000 char]

CharacterString

[SPM: 1000 char]

Size 1 1

ExampleISBN, ISSN,

URI,URLhttp://www.ods-

project.eu/image.jpg

Recommended Elements

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.

Defines all languages used within the learning object. It can store up to ten (10) language elements

1.3 General.Language

DatatypeCharacterString [SPM: 1000

char]Size SPM: 10 items

Example“en”,

“gr”

Recommended Elements

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.

Defines all languages used within the learning object. It can store up to ten (10) language elements

1.4 General.DescriptionDatatype LangString [SPM:2000 char]

Size SPM: 10 items

Example

(“en”, “Artist's interpretation of the x-ray burst of a

neutron star which is the dead core of a massive star”)

Recommended Elements

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.

Provides free text keywords describing the topic of the learning object.

1.5 General.KeywordDatatype LangString [SPM: 1000 char]

Size SPM: 10 items

Example(“en”, “neutron stars”),

(“gr”, “αστέρες νετρονίου”)

Recommended Elements

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.

Stores the functional granularity of the learning object.

1.8 General.Aggregation Level

Datatype VocabularySize 1

Example “1”

Value Space Definition

1The smallest level of aggregation, namely, aneducational resource

2A collection of level 1 learning objects, namely, alesson plan

3A collection of level 2 learning objects, namely aneducational scenario

Recommended Elements

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.

Responsible for data about the entities that have contributed to the state of the L.O. during its life cycle

2.3 LifeCycle.Contribute2.3.1 Role 2.3.2 Entry 2.3.3 Date

Datatype VocabularyCharacterString

[SPM: 1000 char]Date Time

Size 1 SPM: 40 items 1

Example “author”

<entity>BEGIN:VCARD(…)

</entity>

“16/11/2012”

Recommended Elements

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.

Represents a globally unique label that identifies a specific metadata record. The ODS AP permits up to ten (10)

identifiers for each metadata record of a specific learning object.

3.1 Meta - Metadata. Identifier

3.1.1 Catalog 3.1.2 Entry

Datatype

CharacterString

[SPM: 1000 char]

CharacterString

[SPM: 1000 char]

Size 1 1

Example “URI”http://www.ods-

project.eu/description/12

Recommended Elements

26

.

Represents a globally unique label that identifies a specific metadata record. The ODS AP permits up to ten (10)

identifiers for each metadata record of a specific learning object.

3.1 Meta - Metadata. Identifier

3.1.1 Catalog 3.1.2 Entry

Datatype

CharacterString

[SPM: 1000 char]

CharacterString

[SPM: 1000 char]

Size 1 1

Example “URI”http://www.ods-

project.eu/description/12

Recommended Elements

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.

Represents those entities that have affected the state of this metadata instance during its life cycle.

3.2 Meta – Metadata.Contribute3.2.1 Role 3.2.2 Entity 3.2.3 Date

Datatype VocabularyCharacterString

[SPM: 1000 char]Date Time

Size 1 SPM: 10 items 1

Example “creator”

<entity>

BEGIN:VCARD (…)

</entity>

“16/11/2012”

Recommended Elements

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.

Indicates the specific kind of the learning object. It is a Vocabulary data type and the ODS AP permits up to ten (10) different 5.2 Educational.Learning Resource Type

elements.

5.2 Educational. Learning Resource Type

Datatype VocabularySize SPM: 10 items

Example (“Diagram”), (“Exercise”)

Value Space Described in Section 5.6.11 of the ODS LOM AP documentation

Recommended Elements

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.

Indicates the principal environment within which the learning and use of this learning object is intended to take

place

5.6 Educational.Context

Datatype VocabularySize SPM: 10 items

Example(“Primary Education”),

(“Secondary Education”)

Value Space Described in Section 5.6.15 of the ODS LOM AP documentation

Recommended Elements

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.

Intended to indicate the typical age of the user of the learning object. It is a LangString data type and is

expressed by an age range (minimum age to maximum age) separated by a hyphen. Either minimum or maximum value can be set to U (undefined) meaning that then the range is

extended in that way.

5.7 Educational. Typical Age Range

Datatype LangString [SPM: 1000 char]Size SPM: 5 items

Example(“15 – 18”),

(“18 – U”)

Recommended Elements

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.

Exhibits how hard it is to work with or through this learning object for the typical intended target audience.

5.8 Educational. Difficulty

Datatype VocabularySize SPM: 5 items

Example(“easy”),

(“very difficult”)

Value Space Described in Section 5.6.16 of the ODS LOM AP documentation

Recommended Elements

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.

Stores the approximate or time it takes to work with or through this learning object for the typical intended target

audience.

5.9 Educational. Typical Learning Time

Datatype DurationSize 1

Example “PT1H30M”, “PT1M45S”

Recommended Elements

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.

Used to indicate if the use of the learning object requires payment, so as to be used.

6.1 Rights. Cost

Datatype VocabularySize 1

Example“yes”

“no”

Recommended Elements

34

.

Used to indicate if any copyrights or other restrictions apply to the learning object. The value “Yes” means that the copyrights and/or other restrictions apply to the LO,

while “No” means that the learning object has no restrictions and is not protected by copyrights.

6.2 Rights. Copyrights and Other Restrictions

Datatype VocabularySize 1

Example“yes”

“no”

Recommended Elements

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.

Used to provide textual description of copyrights or other restrictions that apply to the learning object.

6.3 Rights. Description

Datatype LangString [SPM: 1000 char]Size 1

Example“en”, “See copyright notice:

http://copyrightsnotice.org/rights.html”

Optional Elements

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.

Used to store the geography or specific region to which the learning object applies.

1.6 General.Coverage

Datatype LangString [SPM: 1000 char]Size SPM: 10 items

Example(“en”, “Europe”)

(“gr”, “Ευρώπη”)

Optional Elements

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.

Provides information about the underlying organizational structure of the learning object.

1.7 General.Structure

Datatype VocabularySize 1

Example(“atomic”)

(“collection”)

Value Space Described in Section 5.6.2 of the ODS LOM AP documentation

Optional Elements

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.

Intended to store the version/edition of the learning object.

2.1 LifeCycle.Version

DatatypeLangString

[SPM: 50 Characters]Size 1

Example (“en”, “v1.0”)

Optional Elements

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.

Intended to indicate the completion status or condition to the learning object.

2.2 LifeCycle.Status

Datatype VocabularySize 1

Example(“draft”)

(“final”)

Value Space Described in Section 5.6.4 of the ODS LOM AP documentation

Optional Elements

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.

Intended for the name and version of the authoritativespecification used to create this metadata instance.

3.3 Meta – Metadata. Metadata Schema

DatatypeCharacterString [SPM: 30

char]Size SPM: 10 items

Example “LOMv1.0”

Optional Elements

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.

Intended to describe the language of the metadata instance.

3.4 Meta – Metadata. Language

DatatypeCharacterString [SPM: 100

char]Size 1

Example “en”

Optional Elements

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.

Presents information about the technical datatype(s) of (all the components of) this learning object.

4.1 Technical. Format

DatatypeCharacterString [SPM: 500

char]Size SPM: 40 items

Example

(“image/gif”)

(“application/x-director”)

(“text/xml”)

Value Space Described in Section 5.6.7 of the ODS LOM AP documentation

Optional Elements

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.

Intended to store the size of the digital learning objects in bytes (octets). The size is represented as a decimal value (radix 10). Consequently, only the digits “0” through “9”

should be used.

4.2 Technical. Size

DatatypeCharacterString [SPM: 500

char]Size 1

Example(“44000”)

(“50392”)

Optional Elements

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.

Used for the grouping of multiple requirements. The composite requirement is satisfied when one of the component requirements is

satisfied, i.e., the logical connector is OR.

4.4 Technical.Requirement

4.4.1.1OrComposit. Type

4.4.1.2 OrComposite.

Name

4.4.1.3 OrComposite.

Minimum Version

4.4.1.4 OrComposite.

Minimum Version

Datatype Vocabulary Vocabulary CharacterString CharacterStringSize 1 1 1 1

Example

(“browser”)

(“operating system”)

(“unix”)

(“multi - os”)

(“7”)

(“v 16.0.2”)

(“7”)

(“v 16.0.2”)

Optional Elements

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.

Intended to hold a description on how to install the learning object.

4.5 Technical. Installation Remarks

Datatype LangString [SPM: 1000 char]Size 1

Example(“en”, “Unzip the zip file and

launch index.html in your web browser”)

Optional Elements

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.

Intended to store information about other software and hardware requirements.

4.6 Technical. Other Platform Requirements

Datatype LangString [SPM: 1000 char]Size 1

Example(“en”, “sound card”), (“en”,

“runtime X”)

Optional Elements

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.

Holds the time a continuous learning object takes when played at intended speed.

4.7 Technical. Duration

Datatype DurationSize 1

Example(“PT1H30M”)

(“PT1M45S”)

Optional Elements

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.

Intended to store the definition of a learning object according to its interactivity type with the user.

5.1 Educational.Interactivity Type

Datatype VocabularySize 1

Example(“Active”)

(“Mixed”)

Value Space Described in Section 5.6.10 of the ODS LOM AP documentation

Optional Elements

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.

Intended to store the degree of interactivity characterizing this learning object. Interactivity in this context refers to

the degree to which the learner can influence the aspect of behavior of the learning object.

5.3 Educational.Interactivity Level

Datatype VocabularySize 1

Example(“low”)

(“very high”)

Value Space Described in Section 5.6.12 of the ODS LOM AP documentation

Optional Elements

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.

Intended to store the degree of conciseness of learning object. The semantic density of a learning object may be

estimated depending on the relation between the amount of information provided and the size, span or duration of

the LO.

5.4 Educational.Density

Datatype VocabularySize 1

Example(“low”)

(“very high”)

Value Space Derives its values from IEEE LOM v1.0 Vocabulary.

Optional Elements

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.

Intended to indicate the role of principal user(s) for which this learning object was designed.

5.5 Educational.Intended End User Role

Datatype VocabularySize SPM:10 items

Example(“Author”)

(“Teacher”)

Value Space Described in Section 5.6.14 of the ODS LOM AP documentation

Optional Elements

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.

Intended to provide comments on how this learning object is to be used.

5.10 Educational.Description

Datatype LangString [SPM:1000 char]Size SPM: 10 items

Example(“en”, “Teacher guidelines

that come with a textbook.”)

Optional Elements

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.

Stores the human language(s) used by typical intended user of this learning object.

5.11 Educational.Language

DatatypeCharacterString [SPM: 100

char]Size SPM: 10 items

Example(“en”),

(“fr”)

Optional Elements

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.

Intended to describe the nature of the relationship between this learning object and the target learning object,

identified by “7.2 Relation.Resource”.

7.1 Relation. Kind

Datatype VocabularySize 1

Example

(“ispartof”),

(“haspart”),

(“isversionof”)

Value Space Described in Section 5.6.17 of the ODS LOM AP documentation

Optional Elements

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.

Stores the target learning object that this relationship references.

7.2 Relation.Resource

7.2.1.1 Relation.Resource. Identifier.Catalog

7.2.1.2 Relation.Resource.

Identifier. Entry

7.2.2 Relation.Resource.

Description

DatatypeCharacterString

[SPM: 1000 char]

CharacterString

[SPM: 1000 char]

LangString

[SPM: 1000 char]Size 1 1 SPM:10 items

Example

(“ISBN”),

(“ARIADNE”),

(“URI”)

(“2-7342-0318”)

(“LEAO875”)

(“en”, “The Quick Time movie of the

horizontal throw on the web site of the

Wikipedia”)

Optional Elements

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.

Stores the entity (i.e., people, organization) that created this annotation.

8.1 Annotation.Entity

DatatypeCharacterString

[SPM: 1000 char]Size 1

Example

<entity>

BEGIN:VCARD

(…)

END:VCARD

</entity>

Optional Elements

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.

Stores the date in which the specific annotation was created.

8.2 Annotation.Date

Datatype DateTimeSize 1

Example (“2012 – 11 – 27”)

Optional Elements

58

.

Contains the description of this annotation regarding the LO.

8.3 Annotation.Description

DatatypeLangString

[SPM: 1000 char]Size 1

Example

(“en”, “I have used this video with my student”. They really

enjoy being able to modify some features of the

experiment”)

Optional Elements

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.

Contains a textual description of the characteristics being described.

9.3 Classification.Description

DatatypeLangString

[SPM: 2000 char]Size 1

Example

(“en”, “This learning object can be used to educate

people how to use a telescope”)

Optional Elements

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.

Contains keyword description of learning objective relativeto its stated purpose.

9.4 Classification.Keyword

DatatypeLangString

[SPM: 1000 char]Size 1

Example (“telescope”, “planets”)

Questions?

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Thanks!

Contact: d.martin@uah.es